Cylinder head water cavity flow test apparatus and method
CA 2105517 A1 · Owner: Beggs, Orrin P. · Inventors: Beggs, Orrin P.; Meyer, Herbert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cylinder head flow test apparatus and method for testing cylinder heads for blockages in water passages wherein blockages in the water passages contained in the cylinder head can be detected by blowing low pressure air at a high velocity into the water passages and measuring the resulting back pressure produced by restrictions within the water passages. The disclosed method and apparatus include means for selectively testing the water passages in a cylinder head and for comparing the back pressure readings obtained from the test to back pressure readings previously obtained from a cylinder head whose water passages are known to have no blockages. An apparatus and method are also disclosed …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed September 3, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 3, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 3, 2015.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.